Liquid antiperspirant composition

Abstract

Disclosed are liquid antiperspirant compositions useful for both roll-on and aerosol antiperspirant applications. The compositions have reduced incidence of in-use skin irritation. The compositions comprise from about 10% to about 70%, by weight, of an antiperspirant active material, from about 1% to about 15%, by weight, of a suspension agent, from about 25% to about 75%, by weight, of a non-volatile silicone fluid component, and no more than about 15%, by weight, of volatile silicone fluid. In aerosol embodiments, the compositions can comprise the above composition as a concentrate in combination with an aerosol propellant.

What is claimed is: 
     
       1. A liquid antiperspirant composition with reduced incidence of skin irritation comprising: (a) from about 10% to about 70%, by weight, of an antiperspirant active material;   (b) from about 1% to about 15%, by weight, of a suspension agent component;   (c) from 0% to about 15%, by weight, of a volatile silicone fluid; and   (d) from about 25% to about 75%, by weight, of a non-volatile silicone fluid having an average viscosity of from about 10 centistokes to about 50 centistokes at 25° C.   
     
     
       2. A liquid antiperspirant as in claim 1, wherein the antiperspirant active material is a zirconium aluminum complex. 
     
     
       3. A liquid antiperspirant as in claim 2, wherein the nonvolatile silicone fluid is a polyalkyl siloxane. 
     
     
       4. A liquid antiperspirant as in claim 3, wherein said nonvolatile silicone fluid comprises dimethicone. 
     
     
       5. A liquid antiperspirant as in claim 1, wherein the amount of the antiperspirant active material is from about 15% to about 60%, the amount of the volatile silicone fluid is from 0% to about 5%, and the amount of the nonvolatile silicone fluid is from about 35% to about 70%. 
     
     
       6. A liquid antiperspirant as in claim 4, wherein the amount of the antiperspirant active material is from about 15% to about 60%, the amount of the volatile silicone fluid is from 0% to about 5%, and the amount of the nonvolatile silicone fluid is from about 45% to about 65%. 
     
     
       7. A liquid antiperspirant as in claim 5, wherein said nonvolatile silicone fluid has an average viscosity of from about 15 centistokes to about 35 centistokes at 25° C. 
     
     
       8. A liquid antiperspirant as in claim 6, wherein said nonvolatile silicone fluid has an average viscosity of from about 18 centistokes to about 30 centistokes at 25° C. 
     
     
       9. A liquid antiperspirant as in claim 1, further comprising from about 1% to about 12%, by weight, of a non-volatile paraffinic oil. 
     
     
       10. A liquid antiperspirant as in claim 9, further comprising from about 1% to about 12%, by weight, of a non-volatile paraffinic oil. 
     
     
       11. A liquid aerosol antiperspirant composition with reduced incidence of skin irritation comprising: I. from about 5% to about 80%, by weight of the composition, of an antiperspirant concentrate comprising: (a) from about 10% to about 70%, by weight of the concentrate, of an antiperspirant active material;   (b) from about 1% to about 15%, by weight of the concentrate, of a suspension agent component;   (c) from 0% to about 15%, by weight of the concentrate, of a volatile silicone fluid; and   (d) from about 25% to about 75%, by weight of the concentrate, of a non-volatile silicone fluid having a viscosity of from about 10 centistokes to about 50 centistokes at 25° C.; and     II. from about 20% to about 95%, by weight of the composition, of an aerosol propellant.   
     
     
       12. A liquid antiperspirant as in claim 11, wherein the antiperspirant active material is a zirconium aluminum complex. 
     
     
       13. A liquid antiperspirant as in claim 12, wherein the nonvolatile silicone fluid is a polyalkyl siloxane. 
     
     
       14. A liquid antiperspirant as in claim 13, wherein said nonvolatile silicone fluid comprises dimethicone. 
     
     
       15. A liquid antiperspirant as in claim 11, wherein the amount of the antiperspirant active material is from about 15% to about 60%, the amount of the volatile silicone fluid is from 0% to about 5%, and the amount of the nonvolatile silicone fluid is from about 35% to about 70%. 
     
     
       16. A liquid antiperspirant as in claim 14, wherein the amount of the antiperspirant active material is from about 15% to about 60%, the amount of the volatile silicone fluid is from 0% to about 5%, and the amount of the nonvolatile silicone fluid is from about 45% to about 65%. 
     
     
       17. A liquid antiperspirant as in claim 15, wherein said nonvolatile silicone fluid has a viscosity of from about 15 centistokes to about 35 centistokes at 25° C. 
     
     
       18. A liquid antiperspirant as in claim 16, wherein said nonvolatile silicone fluid has a viscosity of from about 18 centistokes to about 30 centistokes at 25° C. 
     
     
       19. A liquid antiperspirant as in claim 11, further comprising from about 0.1% to about 15%, by weight, of a non-volatile paraffinic oil. 
     
     
       20. A liquid antiperspirant as in claim 19, further comprising from about 0.1% to about 15%, by weight, of a non-volatile paraffinic oil.